"Spam" is also the label that is given to unsolicited and unwanted electronic communications delivered via e-mail, blog postings, and newsgroups. The term is applied loosely, but most often refers to commercial messages delivered in bulk, similar to "junk mail" advertising delivered by the postal service.
The connection between Spam meat, and spam communication is considered to be a Monthy Python skit in which Vikings in a diner start singing the word "spam" repeatedly in a song, drowning out all other conversation. The association between the "spam" song and "spam" communications is that they are both intrusive, unwanted, and repeat to the point of great annoyance.

